(1r,2r)-1,2-Dibromocyclooctane

Base Information

• Chemical Name: (1r,2r)-1,2-Dibromocyclooctane
• CAS No.: 34969-65-8
• Molecular Formula: C8H14Br2
• Molecular Weight: 270.007
• NSC Number: 91725
• Nikkaji Number: J1.150.392F
• Mol file: 34969-65-8.mol

Synonyms:(1r,2r)-1,2-dibromocyclooctane;34969-65-8;trans-1,2-Dibromocyclooctane;NSC91725;NSC-91725

Chemical Property of (1r,2r)-1,2-Dibromocyclooctane

Chemical Property:

• Vapor Pressure: 0.0184mmHg at 25°C
• Boiling Point: 261.8°C at 760 mmHg
• Flash Point: 125°C
• Density: 1.582g/cm³
• XLogP3: 4.2
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 269.94418
• Heavy Atom Count: 10
• Complexity: 81.3

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1CCCC(C(CC1)Br)Br
• Isomeric SMILES: C1CCC[C@H]([C@@H](CC1)Br)Br

Technology Process of (1r,2r)-1,2-Dibromocyclooctane

There total 1 articles about (1r,2r)-1,2-Dibromocyclooctane which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

Cyclooctan (292-64-8) → cyclooctyl bromide (1556-09-8) + trans-1,2-dibromocyclooctane (29974-69-4,34969-65-8)

Guidance literature:

With bromine; In water; at 20 ℃; for 0.316667h; Overall yield = 93 %Chromat.; Flow reactor; UV-irradiation;

DOI:10.1002/chem.201402303

Reference yield: 91.0%

trans-1,2-dibromocyclooctane (34969-65-8) → cis-Cyclooctene (931-88-4,931-87-3,25267-51-0)

Guidance literature:

With zinc; titanium tetrachloride; In tetrahydrofuran; at 0 ℃; for 3h;

DOI:10.1055/s-1982-30049

Reference yield: 90.0%

trans-1,2-dibromocyclooctane (29974-69-4,34969-65-8) → (E)-cyclooctene (931-89-5,25267-51-0)

Guidance literature:

With sodium tetrahydroborate; nickel dichloride; In tetrahydrofuran; at 20 ℃; for 1h;

DOI:10.1139/V06-125

upstream raw materials:

Cyclooctan

Downstream raw materials:

cis-Cyclooctene

(E)-1-Bromo-cyclooctene

1-bromocyclooctene

cyclooctyne

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